1. Department of Chemistry, Indiana University, 800 East Kirkwood Avenue, Bloomington, Indiana 47405, United States
2. Laboratory of Bacteriology, National Institute of Allergy and Infectious Diseases, 903 South 4th Street, Hamilton, Montana 59840, United States
3. Walden Biosciences, One Kendall Square, Suite 7102, Cambridge, Massachusetts 02139, United States
4. Department of Microbiology and Immunology, The Pennsylvania State University College of Medicine, 700 HMC Crescent Road, Hershey, Pennsylvania 17033, United States
5. Department of Microbiology and Immunology, Montana State University, P.O. Box 173520, Bozeman, Montana 59717, United States